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Reliable Security With Great Looks. McGard wheel locks provide the best protection against theft for boat trailers with steel or alloy wheels. Simply replace one of the lug nuts with a McGard wheel lock - that's it! Made from high quality, through-hardened steel with triple-nickel chrome plating. Guaranteed not to rust, chip, or peel for life. 1/2 x 20 thread.

This is just the product I was looking for. Protects boat wheels and spare tire from be taken by the amature thief. It will not STOP a determined thief but will deture the person looking for a quick score. With the cost of the aluminum rims and tires on my boat this purchase was a must.

The only thing that would have been better would have been a "3 Pack", one for each boat wheel and one for the spare tire.

My trailer is usually parked in an area with other trailers that is unattended. Now I have peace of mind knowing that my wheels will be there when I arrive to get my trailer. They have held up well & not corroded that much either. The only thing is that you have to make sure you have the key if you go on a trip...otherwise you are out of luck if you have a flat.

Description:
Reliable Security With Great Looks. McGard wheel locks
provide the best protection against theft for boat trailers with steel or alloy wheels. Simply replace one of the lug nuts with a McGard wheel lock - thats it! Made from high ...

Description:
Made with a chrome-plated die-cast zinc body, this
weather-resistant lock is perfect for securing spare trailer tires to vehicles, boats, or trailers, and its easy to use. Just slip the backing over the stud and secure it with your existing ...